GB2067811B - Co-ordinate addressing of smetic display cells - Google Patents

Co-ordinate addressing of smetic display cells

Info

Publication number
GB2067811B
GB2067811B GB8001499A GB8001499A GB2067811B GB 2067811 B GB2067811 B GB 2067811B GB 8001499 A GB8001499 A GB 8001499A GB 8001499 A GB8001499 A GB 8001499A GB 2067811 B GB2067811 B GB 2067811B
Authority
GB
United Kingdom
Prior art keywords
smetic
display cells
ordinate
addressing
ordinate addressing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8001499A
Other languages
English (en)
Other versions
GB2067811A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB8001499A priority Critical patent/GB2067811B/en
Priority to US06/219,559 priority patent/US4419664A/en
Priority to AU66271/81A priority patent/AU532891B2/en
Priority to JP396481A priority patent/JPS56106283A/ja
Priority to NL8100184A priority patent/NL191806C/nl
Publication of GB2067811A publication Critical patent/GB2067811A/en
Application granted granted Critical
Publication of GB2067811B publication Critical patent/GB2067811B/en
Priority to US06/526,563 priority patent/US4528562A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13781—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering using smectic liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0469—Details of the physics of pixel operation
    • G09G2300/0478—Details of the physics of pixel operation related to liquid crystal pixels
    • G09G2300/0482—Use of memory effects in nematic liquid crystals
    • G09G2300/0486—Cholesteric liquid crystals, including chiral-nematic liquid crystals, with transitions between focal conic, planar, and homeotropic states
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
GB8001499A 1980-01-16 1980-01-16 Co-ordinate addressing of smetic display cells Expired GB2067811B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB8001499A GB2067811B (en) 1980-01-16 1980-01-16 Co-ordinate addressing of smetic display cells
US06/219,559 US4419664A (en) 1980-01-16 1980-12-23 Co-ordinate addressing of smectic display cells
AU66271/81A AU532891B2 (en) 1980-01-16 1981-01-16 Liquid crystal display cell
JP396481A JPS56106283A (en) 1980-01-16 1981-01-16 Matrix coordinate addressing system for liquid crystal display cell
NL8100184A NL191806C (nl) 1980-01-16 1981-01-16 Werkwijze voor het met behulp van een coördinatenmatrix adresseren in een weergeefcel met vloeibaar kristal
US06/526,563 US4528562A (en) 1980-01-16 1983-08-25 Co-ordinate addressing of smectic display cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8001499A GB2067811B (en) 1980-01-16 1980-01-16 Co-ordinate addressing of smetic display cells

Publications (2)

Publication Number Publication Date
GB2067811A GB2067811A (en) 1981-07-30
GB2067811B true GB2067811B (en) 1983-08-10

Family

ID=10510680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8001499A Expired GB2067811B (en) 1980-01-16 1980-01-16 Co-ordinate addressing of smetic display cells

Country Status (5)

Country Link
US (2) US4419664A (nl)
JP (1) JPS56106283A (nl)
AU (1) AU532891B2 (nl)
GB (1) GB2067811B (nl)
NL (1) NL191806C (nl)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655561A (en) * 1983-04-19 1987-04-07 Canon Kabushiki Kaisha Method of driving optical modulation device using ferroelectric liquid crystal
GB2139392B (en) * 1983-05-05 1986-10-22 Standard Telephones Cables Ltd Display device
GB2149176B (en) * 1983-10-26 1988-07-13 Stc Plc Addressing liquid crystal displays
GB2150726B (en) * 1983-11-30 1988-01-20 Standard Telephones Cables Ltd Office terminals
GB2161951B (en) * 1984-07-17 1988-01-20 Stc Plc Laser addressed smectic displays
US4682858A (en) * 1984-08-20 1987-07-28 Canon Kabushiki Kaisha Liquid crystal device having reduced-pressure region in communication with ferroelectric liquid crystal
US4668049A (en) * 1984-12-18 1987-05-26 Itt Corporation Illumination for a scattering type liquid crystal display
KR910001848B1 (ko) * 1986-02-06 1991-03-28 세이꼬 엡슨 가부시끼가이샤 화상 표시 장치
US4773738A (en) * 1986-08-27 1988-09-27 Canon Kabushiki Kaisha Optical modulation device using ferroelectric liquid crystal and AC and DC driving voltages
US4799770A (en) * 1986-10-02 1989-01-24 Greyhawk Systems, Inc. Liquid crystal cell for image projections and method of operating same
US5082587A (en) * 1988-09-23 1992-01-21 Janulis Eugene P Achiral fluorine-containing liquid crystals
US5482650A (en) * 1992-04-28 1996-01-09 Minnesota Mining And Manufacturing Company Liquid crystal compounds having perfluoroether terminal portions
US5262082A (en) * 1992-04-28 1993-11-16 Minnesota Mining And Manufacturing Company Ferroelectric liquid crystal compounds having perfluoroether terminal portions
US5399291A (en) * 1993-09-30 1995-03-21 Minnesota Mining And Manufacturing Company Liquid crystal compounds having a fluoroether terminal portion
US6154190A (en) * 1995-02-17 2000-11-28 Kent State University Dynamic drive methods and apparatus for a bistable liquid crystal display
US5702637A (en) * 1995-04-19 1997-12-30 Minnesota Mining And Manufacturing Company Liquid crystal compounds having a chiral fluorinated terminal portion
US5658491A (en) * 1995-10-12 1997-08-19 Minnesota Mining And Manufacturing Company Process for controlling cone tilt angle in mixtures of smectic liquid crystal compounds
US5855812A (en) * 1997-04-11 1999-01-05 Minnesota Mining And Manufacturing Company Compounds and process for controlling cone tilt angle in mixtures of smectic liquid crystal compounds
US6268840B1 (en) 1997-05-12 2001-07-31 Kent Displays Incorporated Unipolar waveform drive method and apparatus for a bistable liquid crystal display
US6133895A (en) * 1997-06-04 2000-10-17 Kent Displays Incorporated Cumulative drive scheme and method for a liquid crystal display
US6309561B1 (en) 1997-12-24 2001-10-30 3M Innovative Properties Company Liquid crystal compounds having a chiral fluorinated terminal portion
US20030122752A1 (en) * 2002-01-03 2003-07-03 Yao-Dong Ma Localized driving means for cholesterics displays
WO2011115611A1 (en) * 2010-03-15 2011-09-22 Cambridge Enterprise Limited Liquid crystal formulations and structures for smectic a optical devices
KR101801722B1 (ko) 2010-03-15 2017-11-27 캠브리지 엔터프라이즈 리미티드 스멕틱 ａ 광학 디바이스를 위한 액정 포뮬레이션 및 구조물
GB201100375D0 (en) 2011-01-10 2011-02-23 Cambridge Entpr Ltd Smectic A compositions for use in electrical devices
GB2553147A (en) * 2016-08-26 2018-02-28 Univ Oxford Innovation Ltd Speckle reduction
PL240079B1 (pl) 2017-10-31 2022-02-14 Wojskowa Akad Tech Smektyczna mieszanina ciekłokrystaliczna domieszkowana związkami jonowymi, sposób jej otrzymywania oraz jej zastosowanie
TWI692756B (zh) * 2018-02-07 2020-05-01 神基科技股份有限公司 防水模組及其密封件

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575492A (en) * 1969-07-10 1971-04-20 Rca Corp Turnoff method and circuit for liquid crystal display element
JPS5247745B2 (nl) * 1974-07-31 1977-12-05
GB1557199A (en) * 1976-01-06 1979-12-05 Standard Telephones Cables Ltd Liquid crystal display cells
FR2373076A1 (fr) * 1976-12-03 1978-06-30 Thomson Csf Cellule a cristal liquide
JPS5887535A (ja) * 1981-11-20 1983-05-25 Sony Corp 液晶表示装置

Also Published As

Publication number Publication date
US4528562A (en) 1985-07-09
NL8100184A (nl) 1981-08-17
US4419664A (en) 1983-12-06
JPS6352396B2 (nl) 1988-10-18
AU532891B2 (en) 1983-10-20
NL191806B (nl) 1996-04-01
AU6627181A (en) 1981-07-23
GB2067811A (en) 1981-07-30
JPS56106283A (en) 1981-08-24
NL191806C (nl) 1996-08-02

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20000115

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)